1
4 
0 1 3 2 
-10 -2.220446049e-15 10 10 -2.220446049e-15 10 -10 2.220446049e-15 -10 10 2.220446049e-15 -10 
0 1 2.220446049e-16 0 1 2.220446049e-16 0 1 2.220446049e-16 0 1 2.220446049e-16 0 0 1 0 1 1 0 1 